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MCQ Practice

Technological Knowledge MCQs

What is a feature of 6G compared to 5G?

  • A. Slower speed to save energy
  • B. Use of terahertz bands for ultra-high data rates
  • C. Reduced device connectivity
  • D. Only satellite usage
Explanation:
6G research aims to use the terahertz spectrum for even higher speed and capacity

Which network tech supports many IoT devices over long ranges?

  • A. Wi-Fi 6
  • B. LoRaWAN
  • C. Bluetooth 5.0
  • D. Ethernet
Explanation:
LoRaWAN is designed for long-range, low-power IoT sensor communications.

What is 'fog computing'?

  • A. Using cloud far away
  • B. Processing data close to network edge devices
  • C. Weather-based data processing
  • D. Computing without electricity
Explanation:
Fog computing moves some cloud services to the network edge, closer to end devices.

What is 'edge AI'?

  • A. AI on centralized servers
  • B. AI algorithms running on local edge devices
  • C. AI for video games
  • D. AI robot limbs
Explanation:
Edge AI refers to running AI inference on devices near data sources, such as cameras or sensors.

What ensures blockchain data integrity across nodes?

  • A. Public database
  • B. Hash-linked blocks and consensus
  • C. Encryption keys only
  • D. Trusted server
Explanation:
Blockchain uses cryptographic hashes linking blocks and consensus protocols to maintain integrity.

What is a key feature of quantum computing that offers computational advantages?

  • A. Using vacuum tubes
  • B. Superposition and entanglement
  • C. Fiber optic circuits
  • D. DC power only
Explanation:
Quantum superposition and entanglement enable certain calculations to be done much faster.

What allows dynamic network configuration in emerging tech?

  • A. Hardware-only management
  • B. Software Defined Networking (SDN)
  • C. Analog cables
  • D. Static routing only
Explanation:
SDN separates control and data planes, enabling programmable network configurations.

What is a token in blockchain contexts?

  • A. A physical key
  • B. A digital asset representing value or rights
  • C. A password
  • D. VPN software
Explanation:
In blockchain, a token is a digital unit of value or access rights recorded on the ledger.

Which emerging tech generates realistic human images and voices via deep learning?

  • A. Blockchain
  • B. Generative AI (e.g., GANs)
  • C. Quantum computing
  • D. Fiber optics
Explanation:
Generative AI models such as GANs can generate realistic synthetic images, audio, and text.

Which concept involves using sensor data to create a 3D model of a city or facility?

  • A. Digital wallet
  • B. Digital twin
  • C. Virtual machine
  • D. Quantum replica
Explanation:
Digital twins can model entire environments or systems in real-time using sensor data.